@media screen and (min-width: 800px) {
    .full{
        display: block;
    }
    .response{
        display: none;
    }
    *{
        margin: 0;
        padding: 0;
    }
    body{
        background:url("../img/patterns-bubble.png");
    }
    /* 标题区 */
    nav{
        /* height: 60px; */
        background-color: #b80202;
    }
    .container{
        width: 800px;
        margin: 0 auto;
        position: relative;
    }
    .logo{
        height: 180px;
        background: #b80202 url("../img/title-background-h180.jpg") no-repeat center top;
        text-align: center;
    }
    .title-1{
        margin-top: 20px;
        width: 700px;
    }
    .title-2{
        margin-top: 10px;
        width: 400px;
    }
    /* 菜单 */
    ul, li {
        list-style: none;
    }
    .menu{
        width: 100%;
        height: 60px;
    }
    .menuitem{
        float: left;
        width: 120px;
        height: 60px;
    }
    .itemtitle{
        width: 120px;
        height: 60px;
        font-size: 14px;
        text-align: center;
        line-height: 60px;
        color: #FFFFFF;
    }
    .menuitem:hover .itemcontent{
        display: block;
    }
    .itemcontent{
        display: none;
    }
    .itemcontent li{
        width: 120px;
        height: 60px;
        background-color: #661212;
        text-align: center;
        line-height: 60px;
        color: #FFF;
        font-size: 14px;
    }
    /* .menu{
        display: inline-block;
        position: absolute;
        font-size: 0;
    }
    .menuitem{
        float: left;
        position: relative;
        height: 60px;
    }
    .menuitem:hover .itemcontent{
        display: block;
    }
    .itemtitle{
        height: 60px;
        width: 120px;
        text-align: center;
        line-height: 60px;
        font-size: 16px; 
        color: #FFF;
        cursor: pointer;
    }
    .itemtitle:hover{
        font-weight: bolder;
        background-color: #d51414;
    }
    .itemcontent{
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        z-index: 2000;
        background-color: #b80202;
    }
    .itemcontent li{
        width: 120px;
        height: 60px;
        text-align: center;
        line-height: 60px;
        font-size: 16px; 
        color: #FFF;
        cursor: pointer;
    }
    .itemcontent li:hover{
        font-weight: bolder;
        background-color: #d51414;
    } */